@misc{indiciae37a36e14b0ea,
  title = {Methods for collection of dissolved sulfate and sulfide and analysis of their sulfur isotopic composition},
  author = {R.W. Carmody and Niel Plummer and Eurybiades Busenberg and T.B. Coplen},
  year = {1998},
  doi = {10.3133/ofr97234},
  url = {https://pubs.usgs.gov/publication/ofr97234},
  note = {Source identifier: ofr97234}
}